Within Teamwork Chat, you can track and
    prioritize important messages in a variety of
    ways.
New message indicators
When you receive a new message, your
    Recent sidebar will highlight the channel and
    message in bold. A blue dot icon is displayed
    to the right to inform you of an unread
    message. 

Depending on your notification settings,
    if you are directly mentioned in a chat or
    @online / @all is used, the blue dot icon will
    update to reflect the number of times you have
    been mentioned/notified within that
    conversation. 
The Recent message count will also
    update to reflect the amount of @mentions
    across all of your conversations.

If a new message has been sent to
    one of your starred channels, a
    blue ring will surround the channel
    icon. 

Viewing unread messages
When viewing a conversation or
        channel, a New messages bar will
        display to show you any messages received
        since you last visited the conversation.
        This bar will show if all new messages are
        within the same page view.

If viewing a conversation with a lot
    of unread messages (more than the current page
    view), you will see an unread messages banner
    providing a count of unread
    messages. 

You will also have the option to
    jump to the start of these unread messages by
    clicking the banner. This will take you to the
    last message you read within the
    conversation. 
Highlights
In the Highlights area of your site,
    you can view a single list of all messages you
    have been mentioned in. This
  includes @all and @online mentions.

In the Starred subsection, you can
    view a list of all messages you have starred
    across your conversations and channels.

For more information, see: Starring Conversations and
        Channels